Air Parcel Express

N4581E was operating under 14 cfr 135 carrying cargo. The pilot stated that he departed VFR and had '7 to 10' miles visibility at the accident site. Witnesses at and near the accident site stated that heavy snow was falling at the time of the accident and the visibility was one mile or less. The aircraft struck a 2 story duplex in a light wing low attitude, 18 feet agl. Post crash exam of the aircraft and engines revealed no evidence of mechanical malfunction or failure. The pilot had been grounded for a couple of weeks prior to the accident due to medical problems. There was no record that indicated the pilot had been route checked for operations at Aspen.

The pilot was on a VFR flight from Montpelier, VT to Burlington, VT; a distance of about 80 miles. A mountain range is between the two location. Shortly after takeoff the pilot radioed Burlington approach control and requested an IFR clearance to land at Burlington. He reported that he was 10 miles northwest of Montpelier. The pilot was assigned a transponder code. The air traffic controller then noticed that the aircraft was near a mountain at a unverified altitude of 3,500 feet. The controller alerted the pilot that he was 2 miles south of a 4,393 feet high mountain. There was no response from the pilot. The aircraft collided with the east side of Mt Ethan Allen at a height of 3,580 feet. The aircraft was on a northwest heading at impact. VFR conditions of 3,800 feet broken and 4,000 feet scattered existed at the time. The pilot, sole on board, was killed.

A distress message was received from the pilot stating he was 100 miles south of Grand Isle, LA, and had lost an engine and was unable to maintain altitude. A second message was received shortly afterwards stating that the aircraft was at 1,500 feet and the pilot was preparing to ditch the aircraft. No further contacts and no ELT signals were heard. The aircraft wreckage has not been located.

The pilot was operating his aircraft under the rules of 14 cfr 135, i.e., a scheduled domestic cargo flight. He made a normal departure and climb en route to Salt Lake City, UT. Normal communications and radar flight following was established with Denver ARTCC. Approximately 8 miles west of fort collins, the aircraft suddenly disappeared off of radar and voice contact with the pilot was lost.